Plate-holder attachment for cameras



(No Model.) 2 Sheets-Sheet l.v B. L. TURNER.

PLATE HOLDER ATTACHMENT FOR CAMERAS.

No. 489,512. Patented Jan. 10, 1893.

IIJQegi l B ymn/ L Turner.

(I -lu k Wifgczssas 2 Sheets-Sheet- 2.

B.L.TURNBR. PLATE HOLDER ATTACHMENT FOB CAMERAS, No. 489,512.

(N0 Model.) I

Patented Jan. 10, 1893. T.

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BYRON LEE TURNER, OF PITTSFORD, MICHIGAN.

PLATE-HOLDER ATTACHMENT FOR CAMERAS.

SPECIFICATION forming part of Letters Patent No. 489,512, dated January10, 1893.

Application filed December 11, 1891. Serial No. 414,717. (No model.)

To aZZ whom it may concern:

Be it known that I, BYRON LEE TURNER, a citizen of the United States,residing at Pittsford, in the county of Hillsdale and State of Michigan,have invented a new and useful Plate-Holder for Cameras of which thefollowing is a specification.

The invention relates to improvements in plate holders for cameras.

The object of the present invention is to provide for cameras a plateholder by which a plate may be turned, moved longitudinally and movedlaterally to expose the surface of the same by successive exposures, andwhich will enable a plate to sustain the proper relation to the lens.

A further object of the invention is to enable a plate to be exposed anumber of times, and to arrange the figures of such exposures in theform of a circle or in straight lines extending longitudinally ortransversely of the plate.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described illustrated in theaccompanying drawings and pointed out in the claims hereto appended.

In the drawings Figure l is a perspective View of a plate holderconstructed in accordance with this invention. View, the door beingopen. Fig. 3 is a vertical sectional view, the plate carrier beingturned at right angles to the position shown in Fig. 2. Fig. 4 is ahorizontal sectional view. Fig. 5 is a detail view of the perforatedring.

Like numerals of reference indicate corresponding parts in all thefigures of the drawings.

l designates a rectangular frame or casing having a door 2, and providedat the opposite face with a removable slide 3 which is arranged ingrooves 4, and is withdrawn through an opening 5 to expose a platedesigned to be arranged within a plate support 6. The door 2 is hingedat one side; it is provided at the opposite side with a latch 7, and ithas intermediate its sides vertical ways 8 in which is arranged a slide9 adapted to move vertically in the Ways 8 to raise and lower theplatesupport 6. The ways 8 are formed by strips and plates secured tothe strips and project ing inward therefrom; and the slide is con- Fig.2 is a similar nected with the plate-support by a stem 10, which iscylindrical and is journaled in a circular opening of the slide, and hasits ends 11 and 12 squared. The stem 10 is adapted to turn in thecircular opening of the slide to rotate the plate-support 6; its squaredend 11 is secured in a central rectangular opening of the plate-support6 by a screw 13, and a small plate 14; and its end 12 is secured in arectangular socket 15 of a knob 16 arranged on the outer face of theslide, and adapted to be grasped by the operator to manipulate theplate-support. The vertical movement of the slide 9 is limited by avertical opening 17 of the door, and it is retained at any desiredadjustment by a spring catch 18 mounted on one of the ways 8 and a toothbar 19 secured to the slide, and arranged to be engaged by the springcatch which is provided with a lip for that purpose.

The plate-support 6 is arranged on the inner face of the door 2, andconsists of a plate provided at its ends with plates 20 which areL-shaped in cross-section, and have their flanges projecting inward andforming ways adapted for the reception of the plate to be exposed in acamera. The ways are closed at one side of the carrier by flanges 21,and a plate is retained at the opposite side of the plate-support by apivoted spring catch 22 having its free end 23 bent inward and providedwith a lip 24. At the middle the carrier 6 is provided with a transversegroove 25, which forms a depressed or sunken portion to enable theoperator to readily take hold of the dry plate, and in which the smallplate 14 is arranged.

The knob 16 is provided with an annular flange 26 in an opening of whichis mounted a spring actuated pin 27, arranged to engage openings 28 of aring 29 secured to the slide 9 and arranged around the circular openingof the same, whereby the plate-support 6 when turned, is retainedsecurely at any desired adj ustrnent. The pin 27 is actuated by a spiralspring 30 arranged on the pin and interposed between a projecting piece31, and a plate 32 secured to the top of the knob by a screw 33 whichalso secures the stem 10 to the knob. The plate 32 projects from theouter end of the knob and is provided with outwardly bent perforatedears between which is hinged an end of a lever 34-, which enables thespring actuated pin to be readily withdrawn from the openings 28 fromthe ring 29.

In exposing a plate successively for the purpose of arranging the sameperson or object in various positions on the same plate or to arrange anumber of objects on a plate and pose such persons or objectssuccessively it is necessary to employ a black back ground to preventthe exposed plate fogging or becoming cloudy at an exposure.

It will be readily understood by those skilled in the art that byplacing objects in front of a black back ground a plate may besuccessively exposed to get the persons in different positions. By theconstruction of the plate holder it will be seen that a plate may berotated and moved vertically, whereby any portion of a plate may bebrought opposite a person to be photographed so that the entire surfaceof a plate may be utilized.

The plate holder is applied to the back of a camera similar to theordinary plate holder.

What I claim is- 1. The combination of a plate-holder adapted to beattached to the back of a camera and provided on its back wall with waysand having an elongated opening between the ways, a slide mounted in theways and arranged on the outside of the plate-holder, a plate-supportarranged within the plate-holder on the inner side of the rear wall anda stem secured to the plate-support and passed through the opening andjournaled in the slide whereby the plate-support is adapted to berotated and to slide vertically, substantially as described.

2. The combination of a plate-holder provided on the outer face of itsback wall with vertical waysandhaving an elongated opening arrangedbetween the ways, a slide mounted in the ways, a plate-support connectedwith the slide and located within the plate-holder on the inner face ofthe back wall, a notched bar mounted on the slide, and a spring catchsecured to the plate-holder and arranged to engage said bar whereby theslide is secured in its adjustment, substantially as described.

3. The combination of a plate-holder, provided with a slide having astationary circular series of openings, a plate-support, a stemjournaled in the slide and having its inner end secured to the support,and a revoluble knob arranged on the outer end of the stem and providedwith a spring actuated pin arranged to engage said openings, and rotatewith the knob substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

BYRON LEE TURNER.

Witnesses:

BENJAMIN TURNER, WILsoN A. OASLER.

